Need help with this quadratic function problem, just one question, hopefully quick and simple enough to be answered. Text Excerpt from Q:
"The table below shows the first few terms of a quadratic function. Write a quadratic equation in standard form that describes the function.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class